HK1008648A1 - Loudspeakers with panel-form acoustic radiating elements - Google Patents
Loudspeakers with panel-form acoustic radiating elementsInfo
- Publication number
- HK1008648A1 HK1008648A1 HK98109453A HK98109453A HK1008648A1 HK 1008648 A1 HK1008648 A1 HK 1008648A1 HK 98109453 A HK98109453 A HK 98109453A HK 98109453 A HK98109453 A HK 98109453A HK 1008648 A1 HK1008648 A1 HK 1008648A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- radiator
- enclosure
- panel
- loudspeakers
- radiating elements
- Prior art date
Links
- 239000000725 suspension Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
- H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
- H04R2440/07—Loudspeakers using bending wave resonance and pistonic motion to generate sound
Abstract
A loudspeaker (81) comprising an enclosure, an acoustic radiator (2) in the enclosure, a compliant suspension (3) mounting the radiator in the enclosure for pistonic movement relative thereto, and transducer means (9) for driving the radiator pistonically, characterized in that the radiator is a panel-form distributed mode acoustic radiator, by a first transducer mounted wholly and exclusively on the radiator to vibrate the radiator to cause it to resonate, and by means (11) for varying the air pressure in the enclosure to cause the radiator to move pistonically.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9517918.0A GB9517918D0 (en) | 1995-09-02 | 1995-09-02 | Acoustic device |
GBGB9522281.6A GB9522281D0 (en) | 1995-10-31 | 1995-10-31 | Acoustic device |
GBGB9606836.6A GB9606836D0 (en) | 1996-03-30 | 1996-03-30 | Acoustic device |
PCT/GB1996/002166 WO1997009849A1 (en) | 1995-09-02 | 1996-09-02 | Loudspeakers with panel-form acoustic radiating elements |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1008648A1 true HK1008648A1 (en) | 1999-05-14 |
Family
ID=34865252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK98109453A HK1008648A1 (en) | 1995-09-02 | 1998-07-28 | Loudspeakers with panel-form acoustic radiating elements |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0847668B1 (en) |
JP (1) | JPH11512261A (en) |
CN (1) | CN1195457A (en) |
AT (1) | ATE179043T1 (en) |
AU (1) | AU704299B2 (en) |
CA (1) | CA2230438A1 (en) |
DE (1) | DE69602100T2 (en) |
DK (1) | DK0847668T3 (en) |
EA (1) | EA002097B1 (en) |
ES (1) | ES2132954T3 (en) |
HK (1) | HK1008648A1 (en) |
RO (1) | RO119048B1 (en) |
WO (1) | WO1997009849A1 (en) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
HUP0102904A3 (en) | 1998-06-22 | 2002-12-28 | Slab Technology Ltd Albany | Loudspeakers |
DE19955867A1 (en) * | 1999-11-22 | 2001-06-21 | Harman Audio Electronic Sys | Flat speaker arrangement for bass reproduction |
US8284955B2 (en) | 2006-02-07 | 2012-10-09 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US11431312B2 (en) | 2004-08-10 | 2022-08-30 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10158337B2 (en) | 2004-08-10 | 2018-12-18 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10848118B2 (en) | 2004-08-10 | 2020-11-24 | Bongiovi Acoustics Llc | System and method for digital signal processing |
ITMI20041972A1 (en) | 2004-10-18 | 2005-01-18 | Daniele Ramenzoni | ELECTRO-ACOUSTIC DEVICE, WITH CAVITY RESONATOR, THAT PROVIDES EXTREME THREE-DIMENSIONAL CHARACTERISTICS TO CONTROL, CONCENTRATE AND SPREAD INFRASOUNDS, SOUNDS AND ULTRASOUNDS. |
US10069471B2 (en) | 2006-02-07 | 2018-09-04 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10701505B2 (en) | 2006-02-07 | 2020-06-30 | Bongiovi Acoustics Llc. | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
US10848867B2 (en) | 2006-02-07 | 2020-11-24 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US9615189B2 (en) | 2014-08-08 | 2017-04-04 | Bongiovi Acoustics Llc | Artificial ear apparatus and associated methods for generating a head related audio transfer function |
US11202161B2 (en) | 2006-02-07 | 2021-12-14 | Bongiovi Acoustics Llc | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
FR2968881B1 (en) * | 2010-12-10 | 2013-01-04 | Zedel | BI-MODE ACOUSTIC TRANSDUCER |
US9883318B2 (en) | 2013-06-12 | 2018-01-30 | Bongiovi Acoustics Llc | System and method for stereo field enhancement in two-channel audio systems |
US9264004B2 (en) | 2013-06-12 | 2016-02-16 | Bongiovi Acoustics Llc | System and method for narrow bandwidth digital signal processing |
GB2517721A (en) * | 2013-08-29 | 2015-03-04 | Nokia Corp | Speaker apparatus |
US9906858B2 (en) | 2013-10-22 | 2018-02-27 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10639000B2 (en) | 2014-04-16 | 2020-05-05 | Bongiovi Acoustics Llc | Device for wide-band auscultation |
US9615813B2 (en) | 2014-04-16 | 2017-04-11 | Bongiovi Acoustics Llc. | Device for wide-band auscultation |
US10820883B2 (en) | 2014-04-16 | 2020-11-03 | Bongiovi Acoustics Llc | Noise reduction assembly for auscultation of a body |
US9564146B2 (en) | 2014-08-01 | 2017-02-07 | Bongiovi Acoustics Llc | System and method for digital signal processing in deep diving environment |
US9638672B2 (en) | 2015-03-06 | 2017-05-02 | Bongiovi Acoustics Llc | System and method for acquiring acoustic information from a resonating body |
US9906867B2 (en) | 2015-11-16 | 2018-02-27 | Bongiovi Acoustics Llc | Surface acoustic transducer |
US9621994B1 (en) | 2015-11-16 | 2017-04-11 | Bongiovi Acoustics Llc | Surface acoustic transducer |
EP3776528A4 (en) | 2018-04-11 | 2022-01-05 | Bongiovi Acoustics LLC | Audio enhanced hearing protection system |
WO2020028833A1 (en) | 2018-08-02 | 2020-02-06 | Bongiovi Acoustics Llc | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3164221A (en) * | 1961-06-06 | 1965-01-05 | Rosen Alfred H | Low frequency loudspeaker system |
US3247925A (en) * | 1962-03-08 | 1966-04-26 | Lord Corp | Loudspeaker |
US4379951A (en) * | 1977-04-20 | 1983-04-12 | Gabr Saad Z M | Electro-acoustic transducer means |
EP0340435A3 (en) * | 1988-04-01 | 1991-04-24 | Yamaha Corporation | Acoustic apparatus |
WO1992003024A1 (en) * | 1990-08-04 | 1992-02-20 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Panel-form loudspeaker |
WO1993007729A1 (en) * | 1991-10-02 | 1993-04-15 | Noise Cancellation Technologies, Inc. | Vacuum speaker |
EP0548836B1 (en) * | 1991-12-20 | 1997-06-11 | Matsushita Electric Industrial Co., Ltd. | A bass reproduction speaker apparatus |
-
1996
- 1996-09-02 CA CA002230438A patent/CA2230438A1/en not_active Abandoned
- 1996-09-02 AT AT96929407T patent/ATE179043T1/en not_active IP Right Cessation
- 1996-09-02 EA EA199800250A patent/EA002097B1/en not_active IP Right Cessation
- 1996-09-02 DK DK96929407T patent/DK0847668T3/en active
- 1996-09-02 CN CN96196702.1A patent/CN1195457A/en active Pending
- 1996-09-02 AU AU68822/96A patent/AU704299B2/en not_active Ceased
- 1996-09-02 DE DE69602100T patent/DE69602100T2/en not_active Expired - Fee Related
- 1996-09-02 ES ES96929407T patent/ES2132954T3/en not_active Expired - Lifetime
- 1996-09-02 WO PCT/GB1996/002166 patent/WO1997009849A1/en not_active Application Discontinuation
- 1996-09-02 RO RO98-00647A patent/RO119048B1/en unknown
- 1996-09-02 EP EP96929407A patent/EP0847668B1/en not_active Expired - Lifetime
- 1996-09-02 JP JP9510967A patent/JPH11512261A/en active Pending
-
1998
- 1998-07-28 HK HK98109453A patent/HK1008648A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPH11512261A (en) | 1999-10-19 |
DE69602100D1 (en) | 1999-05-20 |
CA2230438A1 (en) | 1997-03-13 |
DE69602100T2 (en) | 1999-09-16 |
AU6882296A (en) | 1997-03-27 |
RO119048B1 (en) | 2004-02-27 |
AU704299B2 (en) | 1999-04-22 |
EA199800250A1 (en) | 1998-10-29 |
EP0847668A1 (en) | 1998-06-17 |
WO1997009849A1 (en) | 1997-03-13 |
CN1195457A (en) | 1998-10-07 |
DK0847668T3 (en) | 1999-10-25 |
ATE179043T1 (en) | 1999-04-15 |
EP0847668B1 (en) | 1999-04-14 |
ES2132954T3 (en) | 1999-08-16 |
EA002097B1 (en) | 2001-12-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20050902 |